RESUMEN
Objective To investigate the correlations of altitude and duration on the plateau with the heart rate and oxygen saturation of young males.Methods A total 483 cases of males garrisoned on the plateau were enrolled.Informa-tion on age, underlying diseases, length of service on the plateau and garrison areas was collected.The heart rate and oxygen saturation were measured,and the correlations of altitude and duration on the plateau with the heart rate and oxygen saturation were analyzed.Results There was no statistically significant difference in oxygen saturation between the group stationed on the plateau for more than 6 years and the group stationed for less than 6 years.There was significant difference in blood oxygen saturation and heart rate between the two groups.Oxygen saturation was negatively correlated with altitude. Heart rate was positively correlated with altitude.Conclusion Young males who are stationed more than 4500 m above sea level are at high risk of chronic high altitude disease.The risk of chronic high altitude disease can increased with the length of service and age,but further confirmation is meeded.